Remote Pause - Mitsubishi Electric MELSEC-Q Series User Manual

7 FUNCTION

7.6.2 Remote PAUSE

7 - 15
(1) What is Remote PAUSE?
(a) Remote PAUSE performs the Basic model QCPU PAUSE function from an
external source, with the CPU RUN/STOP/RESET switch at RUN position.
The PAUSE function stops the Basic model QCPU calculations while
maintaining the ON/OFF state of all output (Y).
(b) This can be used to maintain the output (Y) on even if the QCPU is changed
to the STOP state, in such areas as process control.
POINT
The output (Y) turns OFF at stop error occurrence.
To retain the output at stop error occurrence, make the output retention setting in
the I/O assignment PLC parameters.
(2) Remote PAUSE Method
There are two ways to use remote PAUSE:
(a) Remote PAUSE Contact Method
The remote PUASE contact is set in the GX Developer function parameter
mode PLC system setting.
Setting of only the remote PAUSE contact cannot be made.
When setting the remote PAUSE contact, also set the remote RUN contact.
The device range that can be set is input X0 to 7FF.
1) The PAUSE state contact (SM204) is turned on when the END
processing is executed for the scan with both remote PAUSE contact
and PAUSE permission flag (SM206) on.
2) When the remote PAUSE contact is off or SM206 is turned off, the
PAUSE state is canceled, and the sequence program calculation is
performed again from step 0.
0
OFF
Remote PAUSE
contact
OFF
SM206
OFF
SM204
RUN
RUN/PAUSE
state
Fig. 7.6 PAUSE Time Chart with Remote PAUSE Contact
END
0 END
ON
ON
ON
ON when
PAUSE
PAUSE
condition
met
MELSEC-Q
0
END
PAUSE state
END
0
7 - 15